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gtk2/gdk/x11/gdkdisplay-x11.c
Emmanuele Bassi 888dfe499d Drop the Big GDK Lock 
GDK has a lock to mark critical sections inside the backends.
Additionally, code that would re-enter into the GTK main loop was
supposed to hold the lock.

Back in the Good Old Days™ this was guaranteed to kind of work only on
the X11 backend, and would cause a neat explosion on any other GDK
backend.

During GTK+ 3.x we deprecated the API to enter and leave the critical
sections, and now we can remove all the internal uses of the lock, since
external API that uses GTK+ 4.x won't be able to hold the GDK lock.

https://bugzilla.gnome.org/show_bug.cgi?id=793124
2018-02-03 12:07:10 +01:00

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/* GDK - The GIMP Drawing Kit
* gdkdisplay-x11.c
*
* Copyright 2001 Sun Microsystems Inc.
* Copyright (C) 2004 Nokia Corporation
*
* Erwann Chenede <erwann.chenede@sun.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#define VK_USE_PLATFORM_XLIB_KHR
#include "gdkdisplay-x11.h"
#include "gdkdisplayprivate.h"
#include "gdkasync.h"
#include "gdkdisplay.h"
#include "gdkeventsource.h"
#include "gdkeventtranslator.h"
#include "gdkframeclockprivate.h"
#include "gdkinternals.h"
#include "gdkdeviceprivate.h"
#include "gdkkeysprivate.h"
#include "gdkmarshalers.h"
#include "xsettings-client.h"
#include "gdkclipboard-x11.h"
#include "gdkprivate-x11.h"
#include "gdkscreen-x11.h"
#include "gdkglcontext-x11.h"
#include "gdkvulkancontext-x11.h"
#include "gdk-private.h"
#include <glib.h>
#include <glib/gprintf.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <X11/Xatom.h>
#include <X11/Xlibint.h>
#ifdef HAVE_XKB
#include <X11/XKBlib.h>
#endif
#ifdef HAVE_XFIXES
#include <X11/extensions/Xfixes.h>
#endif
#include <X11/extensions/shape.h>
#ifdef HAVE_XCOMPOSITE
#include <X11/extensions/Xcomposite.h>
#endif
#ifdef HAVE_XDAMAGE
#include <X11/extensions/Xdamage.h>
#endif
#ifdef HAVE_RANDR
#include <X11/extensions/Xrandr.h>
#endif
enum {
XEVENT,
LAST_SIGNAL
};
typedef struct _GdkErrorTrap GdkErrorTrap;
struct _GdkErrorTrap
{
/* Next sequence when trap was pushed, i.e. first sequence to
* ignore
*/
gulong start_sequence;
/* Next sequence when trap was popped, i.e. first sequence
* to not ignore. 0 if trap is still active.
*/
gulong end_sequence;
/* Most recent error code within the sequence */
int error_code;
};
static void gdk_x11_display_dispose (GObject *object);
static void gdk_x11_display_finalize (GObject *object);
static void gdk_x11_display_event_translator_init (GdkEventTranslatorIface *iface);
static gboolean gdk_x11_display_translate_event (GdkEventTranslator *translator,
GdkDisplay *display,
GdkEvent *event,
const XEvent *xevent);
static void gdk_internal_connection_watch (Display *display,
XPointer arg,
gint fd,
gboolean opening,
XPointer *watch_data);
typedef struct _GdkEventTypeX11 GdkEventTypeX11;
struct _GdkEventTypeX11
{
gint base;
gint n_events;
};
/* Note that we never *directly* use WM_LOCALE_NAME, WM_PROTOCOLS,
* but including them here has the side-effect of getting them
* into the internal Xlib cache
*/
static const char *const precache_atoms[] = {
"UTF8_STRING",
"WM_CLIENT_LEADER",
"WM_DELETE_WINDOW",
"WM_ICON_NAME",
"WM_LOCALE_NAME",
"WM_NAME",
"WM_PROTOCOLS",
"WM_TAKE_FOCUS",
"WM_WINDOW_ROLE",
"_NET_ACTIVE_WINDOW",
"_NET_CURRENT_DESKTOP",
"_NET_FRAME_EXTENTS",
"_NET_STARTUP_ID",
"_NET_WM_CM_S0",
"_NET_WM_DESKTOP",
"_NET_WM_ICON",
"_NET_WM_ICON_NAME",
"_NET_WM_NAME",
"_NET_WM_PID",
"_NET_WM_PING",
"_NET_WM_STATE",
"_NET_WM_STATE_ABOVE",
"_NET_WM_STATE_BELOW",
"_NET_WM_STATE_FULLSCREEN",
"_NET_WM_STATE_HIDDEN",
"_NET_WM_STATE_MODAL",
"_NET_WM_STATE_MAXIMIZED_VERT",
"_NET_WM_STATE_MAXIMIZED_HORZ",
"_NET_WM_STATE_SKIP_TASKBAR",
"_NET_WM_STATE_SKIP_PAGER",
"_NET_WM_STATE_STICKY",
"_NET_WM_SYNC_REQUEST",
"_NET_WM_SYNC_REQUEST_COUNTER",
"_NET_WM_WINDOW_TYPE",
"_NET_WM_WINDOW_TYPE_COMBO",
"_NET_WM_WINDOW_TYPE_DIALOG",
"_NET_WM_WINDOW_TYPE_DND",
"_NET_WM_WINDOW_TYPE_DROPDOWN_MENU",
"_NET_WM_WINDOW_TYPE_MENU",
"_NET_WM_WINDOW_TYPE_NORMAL",
"_NET_WM_WINDOW_TYPE_POPUP_MENU",
"_NET_WM_WINDOW_TYPE_TOOLTIP",
"_NET_WM_WINDOW_TYPE_UTILITY",
"_NET_WM_USER_TIME",
"_NET_WM_USER_TIME_WINDOW",
"_NET_VIRTUAL_ROOTS",
"GDK_SELECTION",
"_NET_WM_STATE_FOCUSED",
"GDK_VISUALS"
};
static char *gdk_sm_client_id;
static guint signals[LAST_SIGNAL] = { 0 };
G_DEFINE_TYPE_WITH_CODE (GdkX11Display, gdk_x11_display, GDK_TYPE_DISPLAY,
G_IMPLEMENT_INTERFACE (GDK_TYPE_EVENT_TRANSLATOR,
gdk_x11_display_event_translator_init))
static void
gdk_x11_display_init (GdkX11Display *display)
{
display->monitors = g_ptr_array_new_with_free_func (g_object_unref);
}
static void
gdk_x11_display_event_translator_init (GdkEventTranslatorIface *iface)
{
iface->translate_event = gdk_x11_display_translate_event;
}
#define ANY_EDGE_TILED (GDK_WINDOW_STATE_LEFT_TILED | \
GDK_WINDOW_STATE_RIGHT_TILED | \
GDK_WINDOW_STATE_TOP_TILED | \
GDK_WINDOW_STATE_BOTTOM_TILED)
static void
do_edge_constraint_state_check (GdkWindow *window,
GdkWindowState old_state,
GdkWindowState *set,
GdkWindowState *unset)
{
GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
GdkWindowState local_set, local_unset;
guint edge_constraints;
local_set = *set;
local_unset = *unset;
edge_constraints = toplevel->edge_constraints;
/* If the WM doesn't support _GTK_EDGE_CONSTRAINTS, rely on the fallback
* implementation. If it supports _GTK_EDGE_CONSTRAINTS, arrange for
* GDK_WINDOW_STATE_TILED to be set if any edge is tiled, and cleared
* if no edge is tiled.
*/
if (!gdk_window_supports_edge_constraints (window))
{
/* FIXME: we rely on implementation details of mutter here:
* mutter only tiles horizontally, and sets maxvert when it does
* and if it tiles, it always affects all edges
*/
if (old_state & GDK_WINDOW_STATE_TILED)
{
if (!toplevel->have_maxvert)
local_unset |= GDK_WINDOW_STATE_TILED;
}
else
{
if (toplevel->have_maxvert && !toplevel->have_maxhorz)
local_set |= GDK_WINDOW_STATE_TILED;
}
}
else
{
if (old_state & GDK_WINDOW_STATE_TILED)
{
if (!(edge_constraints & ANY_EDGE_TILED))
local_unset |= GDK_WINDOW_STATE_TILED;
}
else
{
if (edge_constraints & ANY_EDGE_TILED)
local_set |= GDK_WINDOW_STATE_TILED;
}
}
/* Top edge */
if (old_state & GDK_WINDOW_STATE_TOP_TILED)
{
if ((edge_constraints & GDK_WINDOW_STATE_TOP_TILED) == 0)
local_unset |= GDK_WINDOW_STATE_TOP_TILED;
}
else
{
if (edge_constraints & GDK_WINDOW_STATE_TOP_TILED)
local_set |= GDK_WINDOW_STATE_TOP_TILED;
}
if (old_state & GDK_WINDOW_STATE_TOP_RESIZABLE)
{
if ((edge_constraints & GDK_WINDOW_STATE_TOP_RESIZABLE) == 0)
local_unset |= GDK_WINDOW_STATE_TOP_RESIZABLE;
}
else
{
if (edge_constraints & GDK_WINDOW_STATE_TOP_RESIZABLE)
local_set |= GDK_WINDOW_STATE_TOP_RESIZABLE;
}
/* Right edge */
if (old_state & GDK_WINDOW_STATE_RIGHT_TILED)
{
if ((edge_constraints & GDK_WINDOW_STATE_RIGHT_TILED) == 0)
local_unset |= GDK_WINDOW_STATE_RIGHT_TILED;
}
else
{
if (edge_constraints & GDK_WINDOW_STATE_RIGHT_TILED)
local_set |= GDK_WINDOW_STATE_RIGHT_TILED;
}
if (old_state & GDK_WINDOW_STATE_RIGHT_RESIZABLE)
{
if ((edge_constraints & GDK_WINDOW_STATE_RIGHT_RESIZABLE) == 0)
local_unset |= GDK_WINDOW_STATE_RIGHT_RESIZABLE;
}
else
{
if (edge_constraints & GDK_WINDOW_STATE_RIGHT_RESIZABLE)
local_set |= GDK_WINDOW_STATE_RIGHT_RESIZABLE;
}
/* Bottom edge */
if (old_state & GDK_WINDOW_STATE_BOTTOM_TILED)
{
if ((edge_constraints & GDK_WINDOW_STATE_BOTTOM_TILED) == 0)
local_unset |= GDK_WINDOW_STATE_BOTTOM_TILED;
}
else
{
if (edge_constraints & GDK_WINDOW_STATE_BOTTOM_TILED)
local_set |= GDK_WINDOW_STATE_BOTTOM_TILED;
}
if (old_state & GDK_WINDOW_STATE_BOTTOM_RESIZABLE)
{
if ((edge_constraints & GDK_WINDOW_STATE_BOTTOM_RESIZABLE) == 0)
local_unset |= GDK_WINDOW_STATE_BOTTOM_RESIZABLE;
}
else
{
if (edge_constraints & GDK_WINDOW_STATE_BOTTOM_RESIZABLE)
local_set |= GDK_WINDOW_STATE_BOTTOM_RESIZABLE;
}
/* Left edge */
if (old_state & GDK_WINDOW_STATE_LEFT_TILED)
{
if ((edge_constraints & GDK_WINDOW_STATE_LEFT_TILED) == 0)
local_unset |= GDK_WINDOW_STATE_LEFT_TILED;
}
else
{
if (edge_constraints & GDK_WINDOW_STATE_LEFT_TILED)
local_set |= GDK_WINDOW_STATE_LEFT_TILED;
}
if (old_state & GDK_WINDOW_STATE_LEFT_RESIZABLE)
{
if ((edge_constraints & GDK_WINDOW_STATE_LEFT_RESIZABLE) == 0)
local_unset |= GDK_WINDOW_STATE_LEFT_RESIZABLE;
}
else
{
if (edge_constraints & GDK_WINDOW_STATE_LEFT_RESIZABLE)
local_set |= GDK_WINDOW_STATE_LEFT_RESIZABLE;
}
*set = local_set;
*unset = local_unset;
}
static void
do_net_wm_state_changes (GdkWindow *window)
{
GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
GdkWindowState old_state, set, unset;
if (GDK_WINDOW_DESTROYED (window) ||
gdk_window_get_window_type (window) != GDK_WINDOW_TOPLEVEL)
return;
old_state = gdk_window_get_state (window);
set = unset = 0;
/* For found_sticky to remain TRUE, we have to also be on desktop
* 0xFFFFFFFF
*/
if (old_state & GDK_WINDOW_STATE_STICKY)
{
if (!(toplevel->have_sticky && toplevel->on_all_desktops))
unset |= GDK_WINDOW_STATE_STICKY;
}
else
{
if (toplevel->have_sticky && toplevel->on_all_desktops)
set |= GDK_WINDOW_STATE_STICKY;
}
if (old_state & GDK_WINDOW_STATE_FULLSCREEN)
{
if (!toplevel->have_fullscreen)
unset |= GDK_WINDOW_STATE_FULLSCREEN;
}
else
{
if (toplevel->have_fullscreen)
set |= GDK_WINDOW_STATE_FULLSCREEN;
}
/* Our "maximized" means both vertical and horizontal; if only one,
* we don't expose that via GDK
*/
if (old_state & GDK_WINDOW_STATE_MAXIMIZED)
{
if (!(toplevel->have_maxvert && toplevel->have_maxhorz))
unset |= GDK_WINDOW_STATE_MAXIMIZED;
}
else
{
if (toplevel->have_maxvert && toplevel->have_maxhorz)
set |= GDK_WINDOW_STATE_MAXIMIZED;
}
if (old_state & GDK_WINDOW_STATE_FOCUSED)
{
if (!toplevel->have_focused)
unset |= GDK_WINDOW_STATE_FOCUSED;
}
else
{
if (toplevel->have_focused)
set |= GDK_WINDOW_STATE_FOCUSED;
}
if (old_state & GDK_WINDOW_STATE_ICONIFIED)
{
if (!toplevel->have_hidden)
unset |= GDK_WINDOW_STATE_ICONIFIED;
}
else
{
if (toplevel->have_hidden)
set |= GDK_WINDOW_STATE_ICONIFIED;
}
/* Update edge constraints and tiling */
do_edge_constraint_state_check (window, old_state, &set, &unset);
gdk_synthesize_window_state (window, unset, set);
}
static void
gdk_check_wm_desktop_changed (GdkWindow *window)
{
GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
GdkDisplay *display = GDK_WINDOW_DISPLAY (window);
Atom type;
gint format;
gulong nitems;
gulong bytes_after;
guchar *data;
gulong *desktop;
type = None;
gdk_x11_display_error_trap_push (display);
XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display),
GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP"),
0, G_MAXLONG, False, XA_CARDINAL, &type,
&format, &nitems,
&bytes_after, &data);
gdk_x11_display_error_trap_pop_ignored (display);
if (type != None)
{
desktop = (gulong *)data;
toplevel->on_all_desktops = ((*desktop & 0xFFFFFFFF) == 0xFFFFFFFF);
XFree (desktop);
}
else
toplevel->on_all_desktops = FALSE;
do_net_wm_state_changes (window);
}
static void
gdk_check_wm_state_changed (GdkWindow *window)
{
GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
GdkDisplay *display = GDK_WINDOW_DISPLAY (window);
GdkX11Screen *screen = GDK_WINDOW_SCREEN (window);
Atom type;
gint format;
gulong nitems;
gulong bytes_after;
guchar *data;
Atom *atoms = NULL;
gulong i;
gboolean had_sticky = toplevel->have_sticky;
toplevel->have_sticky = FALSE;
toplevel->have_maxvert = FALSE;
toplevel->have_maxhorz = FALSE;
toplevel->have_fullscreen = FALSE;
toplevel->have_focused = FALSE;
toplevel->have_hidden = FALSE;
type = None;
gdk_x11_display_error_trap_push (display);
XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display), GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE"),
0, G_MAXLONG, False, XA_ATOM, &type, &format, &nitems,
&bytes_after, &data);
gdk_x11_display_error_trap_pop_ignored (display);
if (type != None)
{
Atom sticky_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_STICKY");
Atom maxvert_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_MAXIMIZED_VERT");
Atom maxhorz_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_MAXIMIZED_HORZ");
Atom fullscreen_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_FULLSCREEN");
Atom focused_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_FOCUSED");
Atom hidden_atom = gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE_HIDDEN");
atoms = (Atom *)data;
i = 0;
while (i < nitems)
{
if (atoms[i] == sticky_atom)
toplevel->have_sticky = TRUE;
else if (atoms[i] == maxvert_atom)
toplevel->have_maxvert = TRUE;
else if (atoms[i] == maxhorz_atom)
toplevel->have_maxhorz = TRUE;
else if (atoms[i] == fullscreen_atom)
toplevel->have_fullscreen = TRUE;
else if (atoms[i] == focused_atom)
toplevel->have_focused = TRUE;
else if (atoms[i] == hidden_atom)
toplevel->have_hidden = TRUE;
++i;
}
XFree (atoms);
}
if (!gdk_x11_screen_supports_net_wm_hint (screen,
g_intern_static_string ("_NET_WM_STATE_FOCUSED")))
toplevel->have_focused = TRUE;
/* When have_sticky is turned on, we have to check the DESKTOP property
* as well.
*/
if (toplevel->have_sticky && !had_sticky)
gdk_check_wm_desktop_changed (window);
else
do_net_wm_state_changes (window);
}
static void
gdk_check_edge_constraints_changed (GdkWindow *window)
{
GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (window);
GdkDisplay *display = GDK_WINDOW_DISPLAY (window);
Atom type;
gint format;
gulong nitems;
gulong bytes_after;
guchar *data;
gulong *constraints;
type = None;
gdk_x11_display_error_trap_push (display);
XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display),
GDK_WINDOW_XID (window),
gdk_x11_get_xatom_by_name_for_display (display, "_GTK_EDGE_CONSTRAINTS"),
0, G_MAXLONG, False, XA_CARDINAL, &type,
&format, &nitems,
&bytes_after, &data);
gdk_x11_display_error_trap_pop_ignored (display);
if (type != None)
{
constraints = (gulong *)data;
/* The GDK enum for these states does not begin at zero so, to avoid
* messing around with shifts, just make the passed value and GDK's
* enum values match by shifting to the first tiled state.
*/
toplevel->edge_constraints = constraints[0] << 9;
XFree (constraints);
}
else
{
toplevel->edge_constraints = 0;
}
do_net_wm_state_changes (window);
}
static Atom
get_cm_atom (GdkDisplay *display)
{
return _gdk_x11_get_xatom_for_display_printf (display, "_NET_WM_CM_S%d", DefaultScreen (GDK_DISPLAY_XDISPLAY (display)));
}
static Window
get_event_xwindow (const XEvent *xevent)
{
Window xwindow;
switch (xevent->type)
{
case DestroyNotify:
xwindow = xevent->xdestroywindow.window;
break;
case UnmapNotify:
xwindow = xevent->xunmap.window;
break;
case MapNotify:
xwindow = xevent->xmap.window;
break;
case ConfigureNotify:
xwindow = xevent->xconfigure.window;
break;
case ReparentNotify:
xwindow = xevent->xreparent.window;
break;
case GravityNotify:
xwindow = xevent->xgravity.window;
break;
case CirculateNotify:
xwindow = xevent->xcirculate.window;
break;
default:
xwindow = xevent->xany.window;
}
return xwindow;
}
static gboolean
gdk_x11_display_translate_event (GdkEventTranslator *translator,
GdkDisplay *display,
GdkEvent *event,
const XEvent *xevent)
{
Window xwindow;
GdkWindow *window;
gboolean is_substructure;
GdkWindowImplX11 *window_impl = NULL;
GdkX11Screen *x11_screen = NULL;
GdkToplevelX11 *toplevel = NULL;
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
gboolean return_val;
/* Find the GdkWindow that this event relates to. If that's
* not the same as the window that the event was sent to,
* we are getting an event from SubstructureNotifyMask.
* We ignore such events for internal operation, but we
* need to report them to the application because of
* GDK_SUBSTRUCTURE_MASK (which should be removed at next
* opportunity.) The most likely reason for getting these
* events is when we are used in the Metacity or Mutter
* window managers.
*/
xwindow = get_event_xwindow (xevent);
is_substructure = xwindow != xevent->xany.window;
window = gdk_x11_window_lookup_for_display (display, xwindow);
if (window)
{
/* We may receive events such as NoExpose/GraphicsExpose
* and ShmCompletion for pixmaps
*/
if (!GDK_IS_WINDOW (window))
return FALSE;
x11_screen = GDK_WINDOW_SCREEN (window);
toplevel = _gdk_x11_window_get_toplevel (window);
window_impl = GDK_WINDOW_IMPL_X11 (window->impl);
g_object_ref (window);
}
event->any.window = window;
event->any.send_event = xevent->xany.send_event ? TRUE : FALSE;
if (window && GDK_WINDOW_DESTROYED (window))
{
if (xevent->type != DestroyNotify)
{
return_val = FALSE;
goto done;
}
}
if (xevent->type == DestroyNotify && !is_substructure)
{
x11_screen = GDK_X11_DISPLAY (display)->screen;
if (x11_screen->wmspec_check_window == xevent->xdestroywindow.window)
{
x11_screen->wmspec_check_window = None;
x11_screen->last_wmspec_check_time = 0;
g_free (x11_screen->window_manager_name);
x11_screen->window_manager_name = g_strdup ("unknown");
/* careful, reentrancy */
_gdk_x11_screen_window_manager_changed (x11_screen);
return_val = FALSE;
goto done;
}
}
/* We do a "manual" conversion of the XEvent to a
* GdkEvent. The structures are mostly the same so
* the conversion is fairly straightforward. We also
* optionally print debugging info regarding events
* received.
*/
return_val = TRUE;
switch (xevent->type)
{
case KeymapNotify:
GDK_DISPLAY_NOTE (display, EVENTS, g_message ("keymap notify"));
/* Not currently handled */
return_val = FALSE;
break;
case Expose:
GDK_DISPLAY_NOTE (display, EVENTS,
g_message ("expose:\t\twindow: %ld %d x,y: %d %d w,h: %d %d%s",
xevent->xexpose.window, xevent->xexpose.count,
xevent->xexpose.x, xevent->xexpose.y,
xevent->xexpose.width, xevent->xexpose.height,
event->any.send_event ? " (send)" : ""));
if (window == NULL)
{
return_val = FALSE;
break;
}
{
GdkRectangle expose_rect;
int x2, y2;
expose_rect.x = xevent->xexpose.x / window_impl->window_scale;
expose_rect.y = xevent->xexpose.y / window_impl->window_scale;
x2 = (xevent->xexpose.x + xevent->xexpose.width + window_impl->window_scale -1) / window_impl->window_scale;
expose_rect.width = x2 - expose_rect.x;
y2 = (xevent->xexpose.y + xevent->xexpose.height + window_impl->window_scale -1) / window_impl->window_scale;
expose_rect.height = y2 - expose_rect.y;
_gdk_x11_window_process_expose (window, xevent->xexpose.serial, &expose_rect);
return_val = FALSE;
}
break;
case GraphicsExpose:
{
GdkRectangle expose_rect;
int x2, y2;
GDK_DISPLAY_NOTE (display, EVENTS,
g_message ("graphics expose:\tdrawable: %ld",
xevent->xgraphicsexpose.drawable));
if (window == NULL)
{
return_val = FALSE;
break;
}
expose_rect.x = xevent->xgraphicsexpose.x / window_impl->window_scale;
expose_rect.y = xevent->xgraphicsexpose.y / window_impl->window_scale;
x2 = (xevent->xgraphicsexpose.x + xevent->xgraphicsexpose.width + window_impl->window_scale -1) / window_impl->window_scale;
expose_rect.width = x2 - expose_rect.x;
y2 = (xevent->xgraphicsexpose.y + xevent->xgraphicsexpose.height + window_impl->window_scale -1) / window_impl->window_scale;
expose_rect.height = y2 - expose_rect.y;
_gdk_x11_window_process_expose (window, xevent->xgraphicsexpose.serial, &expose_rect);
return_val = FALSE;
}
break;
case VisibilityNotify:
#ifdef G_ENABLE_DEBUG
if (GDK_DISPLAY_DEBUG_CHECK (display, EVENTS))
switch (xevent->xvisibility.state)
{
case VisibilityFullyObscured:
g_message ("visibility notify:\twindow: %ld none",
xevent->xvisibility.window);
break;
case VisibilityPartiallyObscured:
g_message ("visibility notify:\twindow: %ld partial",
xevent->xvisibility.window);
break;
case VisibilityUnobscured:
g_message ("visibility notify:\twindow: %ld full",
xevent->xvisibility.window);
break;
default:
break;
}
#endif /* G_ENABLE_DEBUG */
/* not handled */
return_val = FALSE;
break;
case CreateNotify:
GDK_DISPLAY_NOTE (display, EVENTS,
g_message ("create notify:\twindow: %ld x,y: %d %d w,h: %d %d b-w: %d parent: %ld ovr: %d",
xevent->xcreatewindow.window,
xevent->xcreatewindow.x,
xevent->xcreatewindow.y,
xevent->xcreatewindow.width,
xevent->xcreatewindow.height,
xevent->xcreatewindow.border_width,
xevent->xcreatewindow.parent,
xevent->xcreatewindow.override_redirect));
/* not really handled */
break;
case DestroyNotify:
GDK_DISPLAY_NOTE (display, EVENTS,
g_message ("destroy notify:\twindow: %ld",
xevent->xdestroywindow.window));
if (!is_substructure)
{
event->any.type = GDK_DESTROY;
event->any.window = window;
return_val = window && !GDK_WINDOW_DESTROYED (window);
if (window && GDK_WINDOW_XID (window) != x11_screen->xroot_window)
gdk_window_destroy_notify (window);
}
else
return_val = FALSE;
break;
case UnmapNotify:
GDK_DISPLAY_NOTE (display, EVENTS,
g_message ("unmap notify:\t\twindow: %ld",
xevent->xmap.window));
event->any.type = GDK_UNMAP;
event->any.window = window;
if (window && !is_substructure)
{
/* If the WM supports the _NET_WM_STATE_HIDDEN hint, we do not want to
* interpret UnmapNotify events as implying iconic state.
* http://bugzilla.gnome.org/show_bug.cgi?id=590726.
*/
if (x11_screen &&
!gdk_x11_screen_supports_net_wm_hint (x11_screen,
g_intern_static_string ("_NET_WM_STATE_HIDDEN")))
{
/* If we are shown (not withdrawn) and get an unmap, it means we were
* iconified in the X sense. If we are withdrawn, and get an unmap, it
* means we hid the window ourselves, so we will have already flipped
* the iconified bit off.
*/
if (GDK_WINDOW_IS_MAPPED (window))
gdk_synthesize_window_state (window,
0,
GDK_WINDOW_STATE_ICONIFIED);
}
if (window_impl->toplevel &&
window_impl->toplevel->frame_pending)
{
window_impl->toplevel->frame_pending = FALSE;
_gdk_frame_clock_thaw (gdk_window_get_frame_clock (event->any.window));
}
if (toplevel)
gdk_window_freeze_toplevel_updates (window);
_gdk_x11_window_grab_check_unmap (window, xevent->xany.serial);
}
break;
case MapNotify:
GDK_DISPLAY_NOTE (display, EVENTS,
g_message ("map notify:\t\twindow: %ld",
xevent->xmap.window));
event->any.type = GDK_MAP;
event->any.window = window;
if (window && !is_substructure)
{
/* Unset iconified if it was set */
if (window->state & GDK_WINDOW_STATE_ICONIFIED)
gdk_synthesize_window_state (window,
GDK_WINDOW_STATE_ICONIFIED,
0);
if (toplevel)
gdk_window_thaw_toplevel_updates (window);
}
break;
case ReparentNotify:
GDK_DISPLAY_NOTE (display, EVENTS,
g_message ("reparent notify:\twindow: %ld x,y: %d %d parent: %ld ovr: %d",
xevent->xreparent.window,
xevent->xreparent.x,
xevent->xreparent.y,
xevent->xreparent.parent,
xevent->xreparent.override_redirect));
/* Not currently handled */
return_val = FALSE;
break;
case ConfigureNotify:
GDK_DISPLAY_NOTE (display, EVENTS,
g_message ("configure notify:\twindow: %ld x,y: %d %d w,h: %d %d b-w: %d above: %ld ovr: %d%s",
xevent->xconfigure.window,
xevent->xconfigure.x,
xevent->xconfigure.y,
xevent->xconfigure.width,
xevent->xconfigure.height,
xevent->xconfigure.border_width,
xevent->xconfigure.above,
xevent->xconfigure.override_redirect,
!window
? " (discarding)"
: window->window_type == GDK_WINDOW_CHILD
? " (discarding child)"
: xevent->xconfigure.event != xevent->xconfigure.window
? " (discarding substructure)"
: ""));
if (_gdk_x11_display_is_root_window (display, xevent->xconfigure.window))
{
_gdk_x11_screen_size_changed (x11_screen, xevent);
}
#ifdef HAVE_XSYNC
if (!is_substructure && toplevel && display_x11->use_sync && toplevel->pending_counter_value != 0)
{
toplevel->configure_counter_value = toplevel->pending_counter_value;
toplevel->configure_counter_value_is_extended = toplevel->pending_counter_value_is_extended;
toplevel->pending_counter_value = 0;
}
#endif
if (!window ||
xevent->xconfigure.event != xevent->xconfigure.window ||
GDK_WINDOW_TYPE (window) == GDK_WINDOW_CHILD)
return_val = FALSE;
else
{
event->any.type = GDK_CONFIGURE;
event->any.window = window;
event->configure.width = (xevent->xconfigure.width + window_impl->window_scale - 1) / window_impl->window_scale;
event->configure.height = (xevent->xconfigure.height + window_impl->window_scale - 1) / window_impl->window_scale;
if (!xevent->xconfigure.send_event &&
!xevent->xconfigure.override_redirect &&
!GDK_WINDOW_DESTROYED (window))
{
gint tx = 0;
gint ty = 0;
Window child_window = 0;
gdk_x11_display_error_trap_push (display);
if (XTranslateCoordinates (GDK_WINDOW_XDISPLAY (window),
GDK_WINDOW_XID (window),
x11_screen->xroot_window,
0, 0,
&tx, &ty,
&child_window))
{
event->configure.x = tx / window_impl->window_scale;
event->configure.y = ty / window_impl->window_scale;
}
gdk_x11_display_error_trap_pop_ignored (display);
}
else
{
event->configure.x = xevent->xconfigure.x / window_impl->window_scale;
event->configure.y = xevent->xconfigure.y / window_impl->window_scale;
}
if (!is_substructure)
{
window->x = event->configure.x;
window->y = event->configure.y;
if (window_impl->unscaled_width != xevent->xconfigure.width ||
window_impl->unscaled_height != xevent->xconfigure.height)
{
window_impl->unscaled_width = xevent->xconfigure.width;
window_impl->unscaled_height = xevent->xconfigure.height;
window->width = event->configure.width;
window->height = event->configure.height;
_gdk_window_update_size (window);
_gdk_x11_window_update_size (window_impl);
}
if (window->resize_count >= 1)
{
window->resize_count -= 1;
if (window->resize_count == 0)
_gdk_x11_moveresize_configure_done (display, window);
}
}
}
break;
case PropertyNotify:
GDK_DISPLAY_NOTE (display, EVENTS,
g_message ("property notify:\twindow: %ld, atom(%ld): %s%s%s",
xevent->xproperty.window,
xevent->xproperty.atom,
"\"",
gdk_x11_get_xatom_name_for_display (display, xevent->xproperty.atom),
"\""));
if (window == NULL)
{
return_val = FALSE;
break;
}
/* We compare with the serial of the last time we mapped the
* window to avoid refetching properties that we set ourselves
*/
if (toplevel &&
xevent->xproperty.serial >= toplevel->map_serial)
{
if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_STATE"))
gdk_check_wm_state_changed (window);
if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_DESKTOP"))
gdk_check_wm_desktop_changed (window);
if (xevent->xproperty.atom == gdk_x11_get_xatom_by_name_for_display (display, "_GTK_EDGE_CONSTRAINTS"))
gdk_check_edge_constraints_changed (window);
}
return_val = FALSE;
break;
case ColormapNotify:
GDK_DISPLAY_NOTE (display, EVENTS,
g_message ("colormap notify:\twindow: %ld",
xevent->xcolormap.window));
/* Not currently handled */
return_val = FALSE;
break;
case ClientMessage:
GDK_DISPLAY_NOTE (display, EVENTS,
g_message ("client message:\twindow: %ld",
xevent->xclient.window));
/* Not currently handled */
return_val = FALSE;
break;
case MappingNotify:
GDK_DISPLAY_NOTE (display, EVENTS,
g_message ("mapping notify"));
/* Let XLib know that there is a new keyboard mapping.
*/
XRefreshKeyboardMapping ((XMappingEvent *) xevent);
_gdk_x11_keymap_keys_changed (display);
return_val = FALSE;
break;
default:
#ifdef HAVE_RANDR
if (xevent->type - display_x11->xrandr_event_base == RRScreenChangeNotify ||
xevent->type - display_x11->xrandr_event_base == RRNotify)
{
if (x11_screen)
_gdk_x11_screen_size_changed (x11_screen, xevent);
}
else
#endif
#ifdef HAVE_XKB
if (xevent->type == display_x11->xkb_event_type)
{
XkbEvent *xkb_event = (XkbEvent *) xevent;
switch (xkb_event->any.xkb_type)
{
case XkbNewKeyboardNotify:
case XkbMapNotify:
_gdk_x11_keymap_keys_changed (display);
return_val = FALSE;
break;
case XkbStateNotify:
_gdk_x11_keymap_state_changed (display, xevent);
break;
default:
break;
}
}
else
#endif
return_val = FALSE;
}
done:
if (return_val)
{
if (event->any.window)
g_object_ref (event->any.window);
}
else
{
/* Mark this event as having no resources to be freed */
event->any.window = NULL;
event->any.type = GDK_NOTHING;
}
if (window)
g_object_unref (window);
return return_val;
}
static GdkFrameTimings *
find_frame_timings (GdkFrameClock *clock,
guint64 serial)
{
gint64 start_frame, end_frame, i;
start_frame = gdk_frame_clock_get_history_start (clock);
end_frame = gdk_frame_clock_get_frame_counter (clock);
for (i = end_frame; i >= start_frame; i--)
{
GdkFrameTimings *timings = gdk_frame_clock_get_timings (clock, i);
if (timings->cookie == serial)
return timings;
}
return NULL;
}
/* _NET_WM_FRAME_DRAWN and _NET_WM_FRAME_TIMINGS messages represent time
* as a "high resolution server time" - this is the server time interpolated
* to microsecond resolution. The advantage of this time representation
* is that if X server is running on the same computer as a client, and
* the Xserver uses 'clock_gettime(CLOCK_MONOTONIC, ...)' for the server
* time, the client can detect this, and all such clients will share a
* a time representation with high accuracy. If there is not a common
* time source, then the time synchronization will be less accurate.
*/
static gint64
server_time_to_monotonic_time (GdkX11Display *display_x11,
gint64 server_time)
{
if (display_x11->server_time_query_time == 0 ||
(!display_x11->server_time_is_monotonic_time &&
server_time > display_x11->server_time_query_time + 10*1000*1000)) /* 10 seconds */
{
gint64 current_server_time = gdk_x11_get_server_time (display_x11->leader_gdk_window);
gint64 current_server_time_usec = (gint64)current_server_time * 1000;
gint64 current_monotonic_time = g_get_monotonic_time ();
display_x11->server_time_query_time = current_monotonic_time;
/* If the server time is within a second of the monotonic time,
* we assume that they are identical. This seems like a big margin,
* but we want to be as robust as possible even if the system
* is under load and our processing of the server response is
* delayed.
*/
if (current_server_time_usec > current_monotonic_time - 1000*1000 &&
current_server_time_usec < current_monotonic_time + 1000*1000)
display_x11->server_time_is_monotonic_time = TRUE;
display_x11->server_time_offset = current_server_time_usec - current_monotonic_time;
}
if (display_x11->server_time_is_monotonic_time)
return server_time;
else
return server_time - display_x11->server_time_offset;
}
GdkFilterReturn
_gdk_wm_protocols_filter (GdkXEvent *xev,
GdkEvent *event,
gpointer data)
{
XEvent *xevent = (XEvent *)xev;
GdkWindow *win = event->any.window;
GdkDisplay *display;
Atom atom;
if (!GDK_IS_X11_WINDOW (win) || GDK_WINDOW_DESTROYED (win))
return GDK_FILTER_CONTINUE;
if (xevent->type != ClientMessage)
return GDK_FILTER_CONTINUE;
display = GDK_WINDOW_DISPLAY (win);
/* This isn't actually WM_PROTOCOLS because that wouldn't leave enough space
* in the message for everything that gets stuffed in */
if (xevent->xclient.message_type == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_FRAME_DRAWN"))
{
GdkWindowImplX11 *window_impl;
window_impl = GDK_WINDOW_IMPL_X11 (win->impl);
if (window_impl->toplevel)
{
guint32 d0 = xevent->xclient.data.l[0];
guint32 d1 = xevent->xclient.data.l[1];
guint32 d2 = xevent->xclient.data.l[2];
guint32 d3 = xevent->xclient.data.l[3];
guint64 serial = ((guint64)d1 << 32) | d0;
gint64 frame_drawn_time = server_time_to_monotonic_time (GDK_X11_DISPLAY (display), ((guint64)d3 << 32) | d2);
gint64 refresh_interval, presentation_time;
GdkFrameClock *clock = gdk_window_get_frame_clock (win);
GdkFrameTimings *timings = find_frame_timings (clock, serial);
if (timings)
timings->drawn_time = frame_drawn_time;
if (window_impl->toplevel->frame_pending)
{
window_impl->toplevel->frame_pending = FALSE;
_gdk_frame_clock_thaw (clock);
}
gdk_frame_clock_get_refresh_info (clock,
frame_drawn_time,
&refresh_interval,
&presentation_time);
if (presentation_time != 0)
window_impl->toplevel->throttled_presentation_time = presentation_time + refresh_interval;
}
return GDK_FILTER_REMOVE;
}
if (xevent->xclient.message_type == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_FRAME_TIMINGS"))
{
GdkWindowImplX11 *window_impl;
window_impl = GDK_WINDOW_IMPL_X11 (win->impl);
if (window_impl->toplevel)
{
guint32 d0 = xevent->xclient.data.l[0];
guint32 d1 = xevent->xclient.data.l[1];
guint32 d2 = xevent->xclient.data.l[2];
guint32 d3 = xevent->xclient.data.l[3];
guint64 serial = ((guint64)d1 << 32) | d0;
GdkFrameClock *clock = gdk_window_get_frame_clock (win);
GdkFrameTimings *timings = find_frame_timings (clock, serial);
if (timings)
{
gint32 presentation_time_offset = (gint32)d2;
gint32 refresh_interval = d3;
if (timings->drawn_time && presentation_time_offset)
timings->presentation_time = timings->drawn_time + presentation_time_offset;
if (refresh_interval)
timings->refresh_interval = refresh_interval;
timings->complete = TRUE;
#ifdef G_ENABLE_DEBUG
if (GDK_DISPLAY_DEBUG_CHECK (display, FRAMES))
_gdk_frame_clock_debug_print_timings (clock, timings);
#endif /* G_ENABLE_DEBUG */
}
}
}
if (xevent->xclient.message_type != gdk_x11_get_xatom_by_name_for_display (display, "WM_PROTOCOLS"))
return GDK_FILTER_CONTINUE;
atom = (Atom) xevent->xclient.data.l[0];
if (atom == gdk_x11_get_xatom_by_name_for_display (display, "WM_DELETE_WINDOW"))
{
/* The delete window request specifies a window
* to delete. We don't actually destroy the
* window because "it is only a request". (The
* window might contain vital data that the
* program does not want destroyed). Instead
* the event is passed along to the program,
* which should then destroy the window.
*/
GDK_DISPLAY_NOTE (display, EVENTS,
g_message ("delete window:\t\twindow: %ld",
xevent->xclient.window));
event->any.type = GDK_DELETE;
gdk_x11_window_set_user_time (win, xevent->xclient.data.l[1]);
return GDK_FILTER_TRANSLATE;
}
else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "WM_TAKE_FOCUS"))
{
GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (win);
/* There is no way of knowing reliably whether we are viewable;
* so trap errors asynchronously around the XSetInputFocus call
*/
if (toplevel && win->accept_focus)
{
gdk_x11_display_error_trap_push (display);
XSetInputFocus (GDK_DISPLAY_XDISPLAY (display),
toplevel->focus_window,
RevertToParent,
xevent->xclient.data.l[1]);
gdk_x11_display_error_trap_pop_ignored (display);
}
return GDK_FILTER_REMOVE;
}
else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PING") &&
!_gdk_x11_display_is_root_window (display, xevent->xclient.window))
{
XClientMessageEvent xclient = xevent->xclient;
xclient.window = GDK_WINDOW_XROOTWIN (win);
XSendEvent (GDK_WINDOW_XDISPLAY (win),
xclient.window,
False,
SubstructureRedirectMask | SubstructureNotifyMask, (XEvent *)&xclient);
return GDK_FILTER_REMOVE;
}
else if (atom == gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_SYNC_REQUEST") &&
GDK_X11_DISPLAY (display)->use_sync)
{
GdkToplevelX11 *toplevel = _gdk_x11_window_get_toplevel (win);
if (toplevel)
{
#ifdef HAVE_XSYNC
toplevel->pending_counter_value = xevent->xclient.data.l[2] + ((gint64)xevent->xclient.data.l[3] << 32);
toplevel->pending_counter_value_is_extended = xevent->xclient.data.l[4] != 0;
#endif
}
return GDK_FILTER_REMOVE;
}
return GDK_FILTER_CONTINUE;
}
static void
gdk_event_init (GdkDisplay *display)
{
GdkX11Display *display_x11;
display_x11 = GDK_X11_DISPLAY (display);
display_x11->event_source = gdk_x11_event_source_new (display);
gdk_x11_event_source_add_translator ((GdkEventSource *) display_x11->event_source,
GDK_EVENT_TRANSLATOR (display));
gdk_x11_event_source_add_translator ((GdkEventSource *) display_x11->event_source,
GDK_EVENT_TRANSLATOR (display_x11->device_manager));
}
static void
set_sm_client_id (GdkDisplay *display,
const gchar *sm_client_id)
{
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
if (gdk_display_is_closed (display))
return;
if (sm_client_id && strcmp (sm_client_id, ""))
XChangeProperty (display_x11->xdisplay, display_x11->leader_window,
gdk_x11_get_xatom_by_name_for_display (display, "SM_CLIENT_ID"),
XA_STRING, 8, PropModeReplace, (guchar *)sm_client_id,
strlen (sm_client_id));
else
XDeleteProperty (display_x11->xdisplay, display_x11->leader_window,
gdk_x11_get_xatom_by_name_for_display (display, "SM_CLIENT_ID"));
}
void
gdk_display_setup_window_visual (GdkDisplay *display,
gint depth,
Visual *visual,
Colormap colormap,
gboolean rgba)
{
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
display_x11->window_depth = depth;
display_x11->window_visual = visual;
display_x11->window_colormap = colormap;
gdk_display_set_rgba (display, rgba);
}
/**
* gdk_x11_display_open:
* @display_name: (allow-none): name of the X display.
* See the XOpenDisplay() for details.
*
* Tries to open a new display to the X server given by
* @display_name. If opening the display fails, %NULL is
* returned.
*
* Returns: (nullable) (transfer full): The new display or
* %NULL on error.
**/
GdkDisplay *
gdk_x11_display_open (const gchar *display_name)
{
Display *xdisplay;
GdkDisplay *display;
GdkX11Display *display_x11;
gint argc;
gchar *argv[1];
XClassHint *class_hint;
gulong pid;
gint ignore;
gint maj, min;
XInitThreads ();
xdisplay = XOpenDisplay (display_name);
if (!xdisplay)
return NULL;
display = g_object_new (GDK_TYPE_X11_DISPLAY, NULL);
display_x11 = GDK_X11_DISPLAY (display);
display_x11->xdisplay = xdisplay;
/* Set up handlers for Xlib internal connections */
XAddConnectionWatch (xdisplay, gdk_internal_connection_watch, NULL);
_gdk_x11_precache_atoms (display, precache_atoms, G_N_ELEMENTS (precache_atoms));
/* RandR must be initialized before we initialize the screens */
display_x11->have_randr12 = FALSE;
display_x11->have_randr13 = FALSE;
display_x11->have_randr15 = FALSE;
#ifdef HAVE_RANDR
if (XRRQueryExtension (display_x11->xdisplay,
&display_x11->xrandr_event_base, &ignore))
{
int major, minor;
XRRQueryVersion (display_x11->xdisplay, &major, &minor);
if ((major == 1 && minor >= 2) || major > 1) {
display_x11->have_randr12 = TRUE;
if (minor >= 3 || major > 1)
display_x11->have_randr13 = TRUE;
#ifdef HAVE_RANDR15
if (minor >= 5 || major > 1)
display_x11->have_randr15 = TRUE;
#endif
}
gdk_x11_register_standard_event_type (display, display_x11->xrandr_event_base, RRNumberEvents);
}
#endif
/* initialize the display's screens */
display_x11->screen = _gdk_x11_screen_new (display, DefaultScreen (display_x11->xdisplay), TRUE);
/* We need to initialize events after we have the screen
* structures in places
*/
_gdk_x11_xsettings_init (GDK_X11_SCREEN (display_x11->screen));
display_x11->device_manager = _gdk_x11_device_manager_new (display);
gdk_event_init (display);
display_x11->leader_gdk_window = gdk_window_new_temp (display);
(_gdk_x11_window_get_toplevel (display_x11->leader_gdk_window))->is_leader = TRUE;
display_x11->leader_window = GDK_WINDOW_XID (display_x11->leader_gdk_window);
display_x11->leader_window_title_set = FALSE;
#ifdef HAVE_XFIXES
if (XFixesQueryExtension (display_x11->xdisplay,
&display_x11->xfixes_event_base,
&ignore))
{
display_x11->have_xfixes = TRUE;
gdk_x11_register_standard_event_type (display,
display_x11->xfixes_event_base,
XFixesNumberEvents);
}
else
#endif
display_x11->have_xfixes = FALSE;
#ifdef HAVE_XCOMPOSITE
if (XCompositeQueryExtension (display_x11->xdisplay,
&ignore, &ignore))
{
int major, minor;
XCompositeQueryVersion (display_x11->xdisplay, &major, &minor);
/* Prior to Composite version 0.4, composited windows clipped their
* parents, so you had to use IncludeInferiors to draw to the parent
* This isn't useful for our purposes, so require 0.4
*/
display_x11->have_xcomposite = major > 0 || (major == 0 && minor >= 4);
}
else
#endif
display_x11->have_xcomposite = FALSE;
#ifdef HAVE_XDAMAGE
if (XDamageQueryExtension (display_x11->xdisplay,
&display_x11->xdamage_event_base,
&ignore))
{
display_x11->have_xdamage = TRUE;
gdk_x11_register_standard_event_type (display,
display_x11->xdamage_event_base,
XDamageNumberEvents);
}
else
#endif
display_x11->have_xdamage = FALSE;
display_x11->have_shapes = FALSE;
display_x11->have_input_shapes = FALSE;
if (XShapeQueryExtension (GDK_DISPLAY_XDISPLAY (display), &display_x11->shape_event_base, &ignore))
{
display_x11->have_shapes = TRUE;
#ifdef ShapeInput
if (XShapeQueryVersion (GDK_DISPLAY_XDISPLAY (display), &maj, &min))
display_x11->have_input_shapes = (maj == 1 && min >= 1);
#endif
}
display_x11->trusted_client = TRUE;
{
Window root, child;
int rootx, rooty, winx, winy;
unsigned int xmask;
gdk_x11_display_error_trap_push (display);
XQueryPointer (display_x11->xdisplay,
GDK_X11_SCREEN (display_x11->screen)->xroot_window,
&root, &child, &rootx, &rooty, &winx, &winy, &xmask);
if (G_UNLIKELY (gdk_x11_display_error_trap_pop (display) == BadWindow))
{
g_warning ("Connection to display %s appears to be untrusted. Pointer and keyboard grabs and inter-client communication may not work as expected.", gdk_display_get_name (display));
display_x11->trusted_client = FALSE;
}
}
if (g_getenv ("GDK_SYNCHRONIZE"))
XSynchronize (display_x11->xdisplay, True);
class_hint = XAllocClassHint();
class_hint->res_name = (char *) g_get_prgname ();
class_hint->res_class = (char *) g_get_prgname ();
/* XmbSetWMProperties sets the RESOURCE_NAME environment variable
* from argv[0], so we just synthesize an argument array here.
*/
argc = 1;
argv[0] = (char *) g_get_prgname ();
XmbSetWMProperties (display_x11->xdisplay,
display_x11->leader_window,
NULL, NULL, argv, argc, NULL, NULL,
class_hint);
XFree (class_hint);
if (gdk_sm_client_id)
set_sm_client_id (display, gdk_sm_client_id);
pid = getpid ();
XChangeProperty (display_x11->xdisplay,
display_x11->leader_window,
gdk_x11_get_xatom_by_name_for_display (display, "_NET_WM_PID"),
XA_CARDINAL, 32, PropModeReplace, (guchar *) & pid, 1);
/* We don't yet know a valid time. */
display_x11->user_time = 0;
#ifdef HAVE_XKB
{
gint xkb_major = XkbMajorVersion;
gint xkb_minor = XkbMinorVersion;
if (XkbLibraryVersion (&xkb_major, &xkb_minor))
{
xkb_major = XkbMajorVersion;
xkb_minor = XkbMinorVersion;
if (XkbQueryExtension (display_x11->xdisplay,
NULL, &display_x11->xkb_event_type, NULL,
&xkb_major, &xkb_minor))
{
Bool detectable_autorepeat_supported;
display_x11->use_xkb = TRUE;
XkbSelectEvents (display_x11->xdisplay,
XkbUseCoreKbd,
XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask,
XkbNewKeyboardNotifyMask | XkbMapNotifyMask | XkbStateNotifyMask);
/* keep this in sync with _gdk_x11_keymap_state_changed() */
XkbSelectEventDetails (display_x11->xdisplay,
XkbUseCoreKbd, XkbStateNotify,
XkbAllStateComponentsMask,
XkbModifierStateMask|XkbGroupStateMask);
XkbSetDetectableAutoRepeat (display_x11->xdisplay,
True,
&detectable_autorepeat_supported);
GDK_NOTE (MISC, g_message ("Detectable autorepeat %s.",
detectable_autorepeat_supported ?
"supported" : "not supported"));
display_x11->have_xkb_autorepeat = detectable_autorepeat_supported;
}
}
}
#endif
display_x11->use_sync = FALSE;
#ifdef HAVE_XSYNC
{
int major, minor;
int error_base, event_base;
if (XSyncQueryExtension (display_x11->xdisplay,
&event_base, &error_base) &&
XSyncInitialize (display_x11->xdisplay,
&major, &minor))
display_x11->use_sync = TRUE;
}
#endif
display->clipboard = gdk_x11_clipboard_new (display, "CLIPBOARD");
display->primary_clipboard = gdk_x11_clipboard_new (display, "PRIMARY");
/*
* It is important that we first request the selection
* notification, and then setup the initial state of
* is_composited to avoid a race condition here.
*/
gdk_x11_display_request_selection_notification (display,
gdk_x11_xatom_to_atom_for_display (display, get_cm_atom (display)));
gdk_display_set_composited (GDK_DISPLAY (display),
XGetSelectionOwner (GDK_DISPLAY_XDISPLAY (display), get_cm_atom (display)) != None);
gdk_display_emit_opened (display);
return display;
}
/**
* gdk_x11_display_set_program_class:
* @display: a #GdkDisplay
* @program_class: a string
*
* Sets the program class.
*
* The X11 backend uses the program class to set the class name part
* of the `WM_CLASS` property on toplevel windows; see the ICCCM.
*
* Since: 3.94
*/
void
gdk_x11_display_set_program_class (GdkDisplay *display,
const char *program_class)
{
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
XClassHint *class_hint;
g_free (display_x11->program_class);
display_x11->program_class = g_strdup (program_class);
class_hint = XAllocClassHint();
class_hint->res_name = (char *) g_get_prgname ();
class_hint->res_class = (char *) program_class;
XSetClassHint (display_x11->xdisplay, display_x11->leader_window, class_hint);
XFree (class_hint);
}
/*
* XLib internal connection handling
*/
typedef struct _GdkInternalConnection GdkInternalConnection;
struct _GdkInternalConnection
{
gint fd;
GSource *source;
Display *display;
};
static gboolean
process_internal_connection (GIOChannel *gioc,
GIOCondition cond,
gpointer data)
{
GdkInternalConnection *connection = (GdkInternalConnection *)data;
XProcessInternalConnection ((Display*)connection->display, connection->fd);
return TRUE;
}
static gulong
gdk_x11_display_get_next_serial (GdkDisplay *display)
{
return NextRequest (GDK_DISPLAY_XDISPLAY (display));
}
static GdkInternalConnection *
gdk_add_connection_handler (Display *display,
guint fd)
{
GIOChannel *io_channel;
GdkInternalConnection *connection;
connection = g_new (GdkInternalConnection, 1);
connection->fd = fd;
connection->display = display;
io_channel = g_io_channel_unix_new (fd);
connection->source = g_io_create_watch (io_channel, G_IO_IN);
g_source_set_callback (connection->source,
(GSourceFunc)process_internal_connection, connection, NULL);
g_source_attach (connection->source, NULL);
g_io_channel_unref (io_channel);
return connection;
}
static void
gdk_remove_connection_handler (GdkInternalConnection *connection)
{
g_source_destroy (connection->source);
g_free (connection);
}
static void
gdk_internal_connection_watch (Display *display,
XPointer arg,
gint fd,
gboolean opening,
XPointer *watch_data)
{
if (opening)
*watch_data = (XPointer)gdk_add_connection_handler (display, fd);
else
gdk_remove_connection_handler ((GdkInternalConnection *)*watch_data);
}
static const gchar *
gdk_x11_display_get_name (GdkDisplay *display)
{
return (gchar *) DisplayString (GDK_X11_DISPLAY (display)->xdisplay);
}
gboolean
_gdk_x11_display_is_root_window (GdkDisplay *display,
Window xroot_window)
{
GdkX11Display *display_x11;
display_x11 = GDK_X11_DISPLAY (display);
return GDK_SCREEN_XROOTWIN (display_x11->screen) == xroot_window;
}
struct XPointerUngrabInfo {
GdkDisplay *display;
guint32 time;
};
static void
device_grab_update_callback (GdkDisplay *display,
gpointer data,
gulong serial)
{
GdkPointerWindowInfo *pointer_info;
GdkDevice *device = data;
pointer_info = _gdk_display_get_pointer_info (display, device);
_gdk_display_device_grab_update (display, device,
pointer_info->last_slave ? pointer_info->last_slave : device,
serial);
}
#define XSERVER_TIME_IS_LATER(time1, time2) \
( (( time1 > time2 ) && ( time1 - time2 < ((guint32)-1)/2 )) || \
(( time1 < time2 ) && ( time2 - time1 > ((guint32)-1)/2 )) \
)
void
_gdk_x11_display_update_grab_info (GdkDisplay *display,
GdkDevice *device,
gint status)
{
if (status == GrabSuccess)
_gdk_x11_roundtrip_async (display, device_grab_update_callback, device);
}
void
_gdk_x11_display_update_grab_info_ungrab (GdkDisplay *display,
GdkDevice *device,
guint32 time,
gulong serial)
{
GdkDeviceGrabInfo *grab;
XFlush (GDK_DISPLAY_XDISPLAY (display));
grab = _gdk_display_get_last_device_grab (display, device);
if (grab &&
(time == GDK_CURRENT_TIME ||
grab->time == GDK_CURRENT_TIME ||
!XSERVER_TIME_IS_LATER (grab->time, time)))
{
grab->serial_end = serial;
_gdk_x11_roundtrip_async (display, device_grab_update_callback, device);
}
}
static void
gdk_x11_display_beep (GdkDisplay *display)
{
#ifdef HAVE_XKB
XkbBell (GDK_DISPLAY_XDISPLAY (display), None, 0, None);
#else
XBell (GDK_DISPLAY_XDISPLAY (display), 0);
#endif
}
static void
gdk_x11_display_sync (GdkDisplay *display)
{
XSync (GDK_DISPLAY_XDISPLAY (display), False);
}
static void
gdk_x11_display_flush (GdkDisplay *display)
{
if (!display->closed)
XFlush (GDK_DISPLAY_XDISPLAY (display));
}
static gboolean
gdk_x11_display_has_pending (GdkDisplay *display)
{
return XPending (GDK_DISPLAY_XDISPLAY (display));
}
static GdkWindow *
gdk_x11_display_get_default_group (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return GDK_X11_DISPLAY (display)->leader_gdk_window;
}
/**
* gdk_x11_display_grab:
* @display: (type GdkX11Display): a #GdkDisplay
*
* Call XGrabServer() on @display.
* To ungrab the display again, use gdk_x11_display_ungrab().
*
* gdk_x11_display_grab()/gdk_x11_display_ungrab() calls can be nested.
*
* Since: 2.2
**/
void
gdk_x11_display_grab (GdkDisplay *display)
{
GdkX11Display *display_x11;
g_return_if_fail (GDK_IS_DISPLAY (display));
display_x11 = GDK_X11_DISPLAY (display);
if (display_x11->grab_count == 0)
XGrabServer (display_x11->xdisplay);
display_x11->grab_count++;
}
/**
* gdk_x11_display_ungrab:
* @display: (type GdkX11Display): a #GdkDisplay
*
* Ungrab @display after it has been grabbed with
* gdk_x11_display_grab().
*
* Since: 2.2
**/
void
gdk_x11_display_ungrab (GdkDisplay *display)
{
GdkX11Display *display_x11;
g_return_if_fail (GDK_IS_DISPLAY (display));
display_x11 = GDK_X11_DISPLAY (display);;
g_return_if_fail (display_x11->grab_count > 0);
display_x11->grab_count--;
if (display_x11->grab_count == 0)
{
XUngrabServer (display_x11->xdisplay);
XFlush (display_x11->xdisplay);
}
}
static void
gdk_x11_display_dispose (GObject *object)
{
GdkX11Display *display_x11 = GDK_X11_DISPLAY (object);
if (display_x11->event_source)
{
g_source_destroy (display_x11->event_source);
g_source_unref (display_x11->event_source);
display_x11->event_source = NULL;
}
G_OBJECT_CLASS (gdk_x11_display_parent_class)->dispose (object);
}
static void
gdk_x11_display_finalize (GObject *object)
{
GdkX11Display *display_x11 = GDK_X11_DISPLAY (object);
/* Keymap */
if (display_x11->keymap)
g_object_unref (display_x11->keymap);
_gdk_x11_cursor_display_finalize (GDK_DISPLAY (display_x11));
/* Empty the event queue */
_gdk_x11_display_free_translate_queue (GDK_DISPLAY (display_x11));
/* Get rid of pending streams */
g_slist_free_full (display_x11->streams, g_object_unref);
/* Atom Hashtable */
g_hash_table_destroy (display_x11->atom_from_virtual);
g_hash_table_destroy (display_x11->atom_to_virtual);
/* Leader Window */
XDestroyWindow (display_x11->xdisplay, display_x11->leader_window);
/* List of event window extraction functions */
g_slist_free_full (display_x11->event_types, g_free);
/* input GdkWindow list */
g_list_free_full (display_x11->input_windows, g_free);
/* Free all GdkX11Screens */
g_object_unref (display_x11->screen);
g_list_free_full (display_x11->screens, g_object_unref);
g_ptr_array_free (display_x11->monitors, TRUE);
g_free (display_x11->startup_notification_id);
/* X ID hashtable */
g_hash_table_destroy (display_x11->xid_ht);
XCloseDisplay (display_x11->xdisplay);
/* error traps */
while (display_x11->error_traps != NULL)
{
GdkErrorTrap *trap = display_x11->error_traps->data;
display_x11->error_traps =
g_slist_delete_link (display_x11->error_traps,
display_x11->error_traps);
if (trap->end_sequence == 0)
g_warning ("Display finalized with an unpopped error trap");
g_slice_free (GdkErrorTrap, trap);
}
g_free (display_x11->program_class);
G_OBJECT_CLASS (gdk_x11_display_parent_class)->finalize (object);
}
/**
* gdk_x11_lookup_xdisplay:
* @xdisplay: a pointer to an X Display
*
* Find the #GdkDisplay corresponding to @xdisplay, if any exists.
*
* Returns: (transfer none) (type GdkX11Display): the #GdkDisplay, if found, otherwise %NULL.
*
* Since: 2.2
**/
GdkDisplay *
gdk_x11_lookup_xdisplay (Display *xdisplay)
{
GSList *list, *l;
GdkDisplay *display;
display = NULL;
list = gdk_display_manager_list_displays (gdk_display_manager_get ());
for (l = list; l; l = l->next)
{
if (GDK_IS_X11_DISPLAY (l->data) &&
GDK_DISPLAY_XDISPLAY (l->data) == xdisplay)
{
display = l->data;
break;
}
}
g_slist_free (list);
return display;
}
/**
* _gdk_x11_display_screen_for_xrootwin:
* @display: a #GdkDisplay
* @xrootwin: window ID for one of of the screen’s of the display.
*
* Given the root window ID of one of the screen’s of a #GdkDisplay,
* finds the screen.
*
* Returns: (transfer none): the #GdkX11Screen corresponding to
* @xrootwin, or %NULL.
**/
GdkX11Screen *
_gdk_x11_display_screen_for_xrootwin (GdkDisplay *display,
Window xrootwin)
{
GdkX11Screen *screen;
XWindowAttributes attrs;
gboolean result;
GdkX11Display *display_x11;
GList *l;
screen = GDK_X11_DISPLAY (display)->screen;
if (GDK_SCREEN_XROOTWIN (screen) == xrootwin)
return screen;
display_x11 = GDK_X11_DISPLAY (display);
for (l = display_x11->screens; l; l = l->next)
{
screen = l->data;
if (GDK_SCREEN_XROOTWIN (screen) == xrootwin)
return screen;
}
gdk_x11_display_error_trap_push (display);
result = XGetWindowAttributes (display_x11->xdisplay, xrootwin, &attrs);
if (gdk_x11_display_error_trap_pop (display) || !result)
return NULL;
screen = _gdk_x11_screen_new (display, XScreenNumberOfScreen (attrs.screen), FALSE);
display_x11->screens = g_list_prepend (display_x11->screens, screen);
return screen;
}
/**
* gdk_x11_display_get_xdisplay:
* @display: (type GdkX11Display): a #GdkDisplay
*
* Returns the X display of a #GdkDisplay.
*
* Returns: (transfer none): an X display
*
* Since: 2.2
*/
Display *
gdk_x11_display_get_xdisplay (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return GDK_X11_DISPLAY (display)->xdisplay;
}
/**
* gdk_x11_display_get_xscreen:
* @display: (type GdkX11Display): a #GdkDisplay
*
* Returns the X Screen used by #GdkDisplay.
*
* Returns: (transfer none): an X Screen
*
* Since: 3.94
*/
Screen *
gdk_x11_display_get_xscreen (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
return GDK_X11_SCREEN (GDK_X11_DISPLAY (display)->screen)->xscreen;
}
/**
* gdk_x11_display_get_xrootwindow:
* @display: (type GdkX11Display): a #GdkDisplay
*
* Returns the root X window used by #GdkDisplay.
*
* Returns: an X Window
*
* Since: 3.94
*/
Window
gdk_x11_display_get_xrootwindow (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_DISPLAY (display), None);
return GDK_SCREEN_XROOTWIN (GDK_X11_DISPLAY (display)->screen);
}
static void
gdk_x11_display_make_default (GdkDisplay *display)
{
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
const gchar *startup_id;
g_free (display_x11->startup_notification_id);
display_x11->startup_notification_id = NULL;
startup_id = g_getenv ("DESKTOP_STARTUP_ID");
if (startup_id && *startup_id != '\0')
{
if (!g_utf8_validate (startup_id, -1, NULL))
g_warning ("DESKTOP_STARTUP_ID contains invalid UTF-8");
else
gdk_x11_display_set_startup_notification_id (display, startup_id);
/* Clear the environment variable so it won't be inherited by
* child processes and confuse things.
*/
g_unsetenv ("DESKTOP_STARTUP_ID");
}
}
static void
broadcast_xmessage (GdkDisplay *display,
const char *message_type,
const char *message_type_begin,
const char *message)
{
Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
Window xroot_window = GDK_DISPLAY_XROOTWIN (display);
Atom type_atom;
Atom type_atom_begin;
Window xwindow;
if (!G_LIKELY (GDK_X11_DISPLAY (display)->trusted_client))
return;
{
XSetWindowAttributes attrs;
attrs.override_redirect = True;
attrs.event_mask = PropertyChangeMask | StructureNotifyMask;
xwindow =
XCreateWindow (xdisplay,
xroot_window,
-100, -100, 1, 1,
0,
CopyFromParent,
CopyFromParent,
(Visual *)CopyFromParent,
CWOverrideRedirect | CWEventMask,
&attrs);
}
type_atom = gdk_x11_get_xatom_by_name_for_display (display, message_type);
type_atom_begin = gdk_x11_get_xatom_by_name_for_display (display, message_type_begin);
{
XClientMessageEvent xclient;
const char *src;
const char *src_end;
char *dest;
char *dest_end;
memset(&xclient, 0, sizeof (xclient));
xclient.type = ClientMessage;
xclient.message_type = type_atom_begin;
xclient.display =xdisplay;
xclient.window = xwindow;
xclient.format = 8;
src = message;
src_end = message + strlen (message) + 1; /* +1 to include nul byte */
while (src != src_end)
{
dest = &xclient.data.b[0];
dest_end = dest + 20;
while (dest != dest_end &&
src != src_end)
{
*dest = *src;
++dest;
++src;
}
while (dest != dest_end)
{
*dest = 0;
++dest;
}
XSendEvent (xdisplay,
xroot_window,
False,
PropertyChangeMask,
(XEvent *)&xclient);
xclient.message_type = type_atom;
}
}
XDestroyWindow (xdisplay, xwindow);
XFlush (xdisplay);
}
/**
* gdk_x11_display_broadcast_startup_message:
* @display: (type GdkX11Display): a #GdkDisplay
* @message_type: startup notification message type ("new", "change",
* or "remove")
* @...: a list of key/value pairs (as strings), terminated by a
* %NULL key. (A %NULL value for a key will cause that key to be
* skipped in the output.)
*
* Sends a startup notification message of type @message_type to
* @display.
*
* This is a convenience function for use by code that implements the
* freedesktop startup notification specification. Applications should
* not normally need to call it directly. See the
* [Startup Notification Protocol specification](http://standards.freedesktop.org/startup-notification-spec/startup-notification-latest.txt)
* for definitions of the message types and keys that can be used.
*
* Since: 2.12
**/
void
gdk_x11_display_broadcast_startup_message (GdkDisplay *display,
const char *message_type,
...)
{
GString *message;
va_list ap;
const char *key, *value, *p;
message = g_string_new (message_type);
g_string_append_c (message, ':');
va_start (ap, message_type);
while ((key = va_arg (ap, const char *)))
{
value = va_arg (ap, const char *);
if (!value)
continue;
g_string_append_printf (message, " %s=\"", key);
for (p = value; *p; p++)
{
switch (*p)
{
case ' ':
case '"':
case '\\':
g_string_append_c (message, '\\');
break;
default:
break;
}
g_string_append_c (message, *p);
}
g_string_append_c (message, '\"');
}
va_end (ap);
broadcast_xmessage (display,
"_NET_STARTUP_INFO",
"_NET_STARTUP_INFO_BEGIN",
message->str);
g_string_free (message, TRUE);
}
static void
gdk_x11_display_notify_startup_complete (GdkDisplay *display,
const gchar *startup_id)
{
gchar *free_this = NULL;
if (startup_id == NULL)
{
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
startup_id = free_this = display_x11->startup_notification_id;
display_x11->startup_notification_id = NULL;
if (startup_id == NULL)
return;
}
gdk_x11_display_broadcast_startup_message (display, "remove",
"ID", startup_id,
NULL);
g_free (free_this);
}
gboolean
gdk_x11_display_request_selection_notification (GdkDisplay *display,
const char *selection)
{
#ifdef HAVE_XFIXES
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
Atom atom;
if (display_x11->have_xfixes)
{
atom = gdk_x11_get_xatom_by_name_for_display (display, selection);
XFixesSelectSelectionInput (display_x11->xdisplay,
display_x11->leader_window,
atom,
XFixesSetSelectionOwnerNotifyMask |
XFixesSelectionWindowDestroyNotifyMask |
XFixesSelectionClientCloseNotifyMask);
return TRUE;
}
else
#endif
return FALSE;
}
/**
* gdk_x11_display_get_user_time:
* @display: (type GdkX11Display): a #GdkDisplay
*
* Returns the timestamp of the last user interaction on
* @display. The timestamp is taken from events caused
* by user interaction such as key presses or pointer
* movements. See gdk_x11_window_set_user_time().
*
* Returns: the timestamp of the last user interaction
*
* Since: 2.8
*/
guint32
gdk_x11_display_get_user_time (GdkDisplay *display)
{
return GDK_X11_DISPLAY (display)->user_time;
}
static gboolean
gdk_x11_display_supports_shapes (GdkDisplay *display)
{
return GDK_X11_DISPLAY (display)->have_shapes;
}
static gboolean
gdk_x11_display_supports_input_shapes (GdkDisplay *display)
{
return GDK_X11_DISPLAY (display)->have_input_shapes;
}
/**
* gdk_x11_display_get_startup_notification_id:
* @display: (type GdkX11Display): a #GdkDisplay
*
* Gets the startup notification ID for a display.
*
* Returns: the startup notification ID for @display
*
* Since: 2.12
*/
const gchar *
gdk_x11_display_get_startup_notification_id (GdkDisplay *display)
{
return GDK_X11_DISPLAY (display)->startup_notification_id;
}
/**
* gdk_x11_display_set_startup_notification_id:
* @display: (type GdkX11Display): a #GdkDisplay
* @startup_id: the startup notification ID (must be valid utf8)
*
* Sets the startup notification ID for a display.
*
* This is usually taken from the value of the DESKTOP_STARTUP_ID
* environment variable, but in some cases (such as the application not
* being launched using exec()) it can come from other sources.
*
* If the ID contains the string "_TIME" then the portion following that
* string is taken to be the X11 timestamp of the event that triggered
* the application to be launched and the GDK current event time is set
* accordingly.
*
* The startup ID is also what is used to signal that the startup is
* complete (for example, when opening a window or when calling
* gdk_notify_startup_complete()).
*
* Since: 3.0
**/
void
gdk_x11_display_set_startup_notification_id (GdkDisplay *display,
const gchar *startup_id)
{
GdkX11Display *display_x11;
gchar *time_str;
display_x11 = GDK_X11_DISPLAY (display);
g_free (display_x11->startup_notification_id);
display_x11->startup_notification_id = g_strdup (startup_id);
if (startup_id != NULL)
{
/* Find the launch time from the startup_id, if it's there. Newer spec
* states that the startup_id is of the form <unique>_TIME<timestamp>
*/
time_str = g_strrstr (startup_id, "_TIME");
if (time_str != NULL)
{
gulong retval;
gchar *end;
errno = 0;
/* Skip past the "_TIME" part */
time_str += 5;
retval = strtoul (time_str, &end, 0);
if (end != time_str && errno == 0)
display_x11->user_time = retval;
}
else
display_x11->user_time = 0;
/* Set the startup id on the leader window so it
* applies to all windows we create on this display
*/
XChangeProperty (display_x11->xdisplay,
display_x11->leader_window,
gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"),
gdk_x11_get_xatom_by_name_for_display (display, "UTF8_STRING"), 8,
PropModeReplace,
(guchar *)startup_id, strlen (startup_id));
}
else
{
XDeleteProperty (display_x11->xdisplay, display_x11->leader_window,
gdk_x11_get_xatom_by_name_for_display (display, "_NET_STARTUP_ID"));
display_x11->user_time = 0;
}
}
/**
* gdk_x11_register_standard_event_type:
* @display: (type GdkX11Display): a #GdkDisplay
* @event_base: first event type code to register
* @n_events: number of event type codes to register
*
* Registers interest in receiving extension events with type codes
* between @event_base and `event_base + n_events - 1`.
* The registered events must have the window field in the same place
* as core X events (this is not the case for e.g. XKB extension events).
*
* If an event type is registered, events of this type will go through
* global and window-specific filters (see gdk_window_add_filter()).
* Unregistered events will only go through global filters.
* GDK may register the events of some X extensions on its own.
*
* This function should only be needed in unusual circumstances, e.g.
* when filtering XInput extension events on the root window.
*
* Since: 2.4
**/
void
gdk_x11_register_standard_event_type (GdkDisplay *display,
gint event_base,
gint n_events)
{
GdkEventTypeX11 *event_type;
GdkX11Display *display_x11;
display_x11 = GDK_X11_DISPLAY (display);
event_type = g_new (GdkEventTypeX11, 1);
event_type->base = event_base;
event_type->n_events = n_events;
display_x11->event_types = g_slist_prepend (display_x11->event_types, event_type);
}
/* look up the extension name for a given major opcode. grubs around in
* xlib to do it since a) it’s already cached there b) XQueryExtension
* emits protocol so we can’t use it in an error handler.
*/
static const char *
_gdk_x11_decode_request_code(Display *dpy, int code)
{
_XExtension *ext;
if (code < 128)
return "core protocol";
for (ext = dpy->ext_procs; ext; ext = ext->next)
{
if (ext->codes.major_opcode == code)
return ext->name;
}
return "unknown";
}
/* compare X sequence numbers handling wraparound */
#define SEQUENCE_COMPARE(a,op,b) (((long) (a) - (long) (b)) op 0)
/* delivers an error event from the error handler in gdkmain-x11.c */
void
_gdk_x11_display_error_event (GdkDisplay *display,
XErrorEvent *error)
{
GdkX11Display *display_x11;
GSList *tmp_list;
gboolean ignore;
display_x11 = GDK_X11_DISPLAY (display);
ignore = FALSE;
for (tmp_list = display_x11->error_traps;
tmp_list != NULL;
tmp_list = tmp_list->next)
{
GdkErrorTrap *trap;
trap = tmp_list->data;
if (SEQUENCE_COMPARE (trap->start_sequence, <=, error->serial) &&
(trap->end_sequence == 0 ||
SEQUENCE_COMPARE (trap->end_sequence, >, error->serial)))
{
ignore = TRUE;
trap->error_code = error->error_code;
break; /* only innermost trap gets the error code */
}
}
if (!ignore)
{
gchar buf[64];
gchar *msg;
XGetErrorText (display_x11->xdisplay, error->error_code, buf, 63);
msg =
g_strdup_printf ("The program '%s' received an X Window System error.\n"
"This probably reflects a bug in the program.\n"
"The error was '%s'.\n"
" (Details: serial %ld error_code %d request_code %d (%s) minor_code %d)\n"
" (Note to programmers: normally, X errors are reported asynchronously;\n"
" that is, you will receive the error a while after causing it.\n"
" To debug your program, run it with the GDK_SYNCHRONIZE environment\n"
" variable to change this behavior. You can then get a meaningful\n"
" backtrace from your debugger if you break on the gdk_x_error() function.)",
g_get_prgname (),
buf,
error->serial,
error->error_code,
error->request_code,
_gdk_x11_decode_request_code(display_x11->xdisplay,
error->request_code),
error->minor_code);
#ifdef G_ENABLE_DEBUG
g_error ("%s", msg);
#else /* !G_ENABLE_DEBUG */
g_warning ("%s", msg);
_exit (1);
#endif /* G_ENABLE_DEBUG */
}
}
static void
delete_outdated_error_traps (GdkX11Display *display_x11)
{
GSList *tmp_list;
gulong processed_sequence;
processed_sequence = XLastKnownRequestProcessed (display_x11->xdisplay);
tmp_list = display_x11->error_traps;
while (tmp_list != NULL)
{
GdkErrorTrap *trap = tmp_list->data;
if (trap->end_sequence != 0 &&
SEQUENCE_COMPARE (trap->end_sequence, <=, processed_sequence))
{
GSList *free_me = tmp_list;
tmp_list = tmp_list->next;
display_x11->error_traps =
g_slist_delete_link (display_x11->error_traps, free_me);
g_slice_free (GdkErrorTrap, trap);
}
else
{
tmp_list = tmp_list->next;
}
}
}
/**
* gdk_x11_display_error_trap_push:
* @display: (type GdkX11Display): a #GdkDisplay
*
* Begins a range of X requests on @display for which X error events
* will be ignored. Unignored errors (when no trap is pushed) will abort
* the application. Use gdk_x11_display_error_trap_pop() or
* gdk_x11_display_error_trap_pop_ignored()to lift a trap pushed
* with this function.
*
* See also gdk_error_trap_push() to push a trap on all displays.
*
* Since: 3.0
*/
void
gdk_x11_display_error_trap_push (GdkDisplay *display)
{
GdkX11Display *display_x11;
GdkErrorTrap *trap;
display_x11 = GDK_X11_DISPLAY (display);
delete_outdated_error_traps (display_x11);
/* set up the Xlib callback to tell us about errors */
_gdk_x11_error_handler_push ();
trap = g_slice_new0 (GdkErrorTrap);
trap->start_sequence = XNextRequest (display_x11->xdisplay);
trap->error_code = Success;
display_x11->error_traps =
g_slist_prepend (display_x11->error_traps, trap);
}
static gint
gdk_x11_display_error_trap_pop_internal (GdkDisplay *display,
gboolean need_code)
{
GdkX11Display *display_x11;
GdkErrorTrap *trap;
GSList *tmp_list;
int result;
display_x11 = GDK_X11_DISPLAY (display);
g_return_val_if_fail (display_x11->error_traps != NULL, Success);
/* Find the first trap that hasn't been popped already */
trap = NULL; /* quiet gcc */
for (tmp_list = display_x11->error_traps;
tmp_list != NULL;
tmp_list = tmp_list->next)
{
trap = tmp_list->data;
if (trap->end_sequence == 0)
break;
}
g_return_val_if_fail (trap != NULL, Success);
g_assert (trap->end_sequence == 0);
/* May need to sync to fill in trap->error_code if we care about
* getting an error code.
*/
if (need_code)
{
gulong processed_sequence;
gulong next_sequence;
next_sequence = XNextRequest (display_x11->xdisplay);
processed_sequence = XLastKnownRequestProcessed (display_x11->xdisplay);
/* If our last request was already processed, there is no point
* in syncing. i.e. if last request was a round trip (or even if
* we got an event with the serial of a non-round-trip)
*/
if ((next_sequence - 1) != processed_sequence)
{
XSync (display_x11->xdisplay, False);
}
result = trap->error_code;
}
else
{
result = Success;
}
/* record end of trap, giving us a range of
* error sequences we'll ignore.
*/
trap->end_sequence = XNextRequest (display_x11->xdisplay);
/* remove the Xlib callback */
_gdk_x11_error_handler_pop ();
/* we may already be outdated */
delete_outdated_error_traps (display_x11);
return result;
}
/**
* gdk_x11_display_set_window_scale:
* @display: (type GdkX11Display): the display
* @scale: The new scale value
*
* Forces a specific window scale for all windows on this display,
* instead of using the default or user configured scale. This
* is can be used to disable scaling support by setting @scale to
* 1, or to programmatically set the window scale.
*
* Once the scale is set by this call it will not change in response
* to later user configuration changes.
*
* Since: 3.10
*/
void
gdk_x11_display_set_window_scale (GdkDisplay *display,
gint scale)
{
GdkX11Screen *x11_screen;
gboolean need_reread_settings = FALSE;
g_return_if_fail (GDK_IS_X11_DISPLAY (display));
scale = MAX (scale, 1);
x11_screen = GDK_X11_SCREEN (GDK_X11_DISPLAY (display)->screen);
if (!x11_screen->fixed_window_scale)
{
x11_screen->fixed_window_scale = TRUE;
/* We treat screens with a window scale set differently when
* reading xsettings, so we need to reread
*/
need_reread_settings = TRUE;
}
_gdk_x11_screen_set_window_scale (x11_screen, scale);
if (need_reread_settings)
_gdk_x11_settings_force_reread (x11_screen);
}
/**
* gdk_x11_display_error_trap_pop:
* @display: (type GdkX11Display): the display
*
* Pops the error trap pushed by gdk_x11_display_error_trap_push().
* Will XSync() if necessary and will always block until
* the error is known to have occurred or not occurred,
* so the error code can be returned.
*
* If you don’t need to use the return value,
* gdk_x11_display_error_trap_pop_ignored() would be more efficient.
*
* See gdk_error_trap_pop() for the all-displays-at-once
* equivalent.
*
* Since: 3.0
*
* Returns: X error code or 0 on success
*/
gint
gdk_x11_display_error_trap_pop (GdkDisplay *display)
{
g_return_val_if_fail (GDK_IS_X11_DISPLAY (display), Success);
return gdk_x11_display_error_trap_pop_internal (display, TRUE);
}
/**
* gdk_x11_display_error_trap_pop_ignored:
* @display: (type GdkX11Display): the display
*
* Pops the error trap pushed by gdk_x11_display_error_trap_push().
* Does not block to see if an error occurred; merely records the
* range of requests to ignore errors for, and ignores those errors
* if they arrive asynchronously.
*
* See gdk_error_trap_pop_ignored() for the all-displays-at-once
* equivalent.
*
* Since: 3.0
*/
void
gdk_x11_display_error_trap_pop_ignored (GdkDisplay *display)
{
g_return_if_fail (GDK_IS_X11_DISPLAY (display));
gdk_x11_display_error_trap_pop_internal (display, FALSE);
}
/**
* gdk_x11_set_sm_client_id:
* @sm_client_id: the client id assigned by the session manager when the
* connection was opened, or %NULL to remove the property.
*
* Sets the `SM_CLIENT_ID` property on the application’s leader window so that
* the window manager can save the application’s state using the X11R6 ICCCM
* session management protocol.
*
* See the X Session Management Library documentation for more information on
* session management and the Inter-Client Communication Conventions Manual
*
* Since: 2.24
*/
void
gdk_x11_set_sm_client_id (const gchar *sm_client_id)
{
GSList *displays, *l;
g_free (gdk_sm_client_id);
gdk_sm_client_id = g_strdup (sm_client_id);
displays = gdk_display_manager_list_displays (gdk_display_manager_get ());
for (l = displays; l; l = l->next)
{
if (GDK_IS_X11_DISPLAY (l->data))
set_sm_client_id (l->data, sm_client_id);
}
g_slist_free (displays);
}
gsize
gdk_x11_display_get_max_request_size (GdkDisplay *display)
{
Display *xdisplay = GDK_DISPLAY_XDISPLAY (display);
gsize size;
size = XExtendedMaxRequestSize (xdisplay);
if (size <= 0)
size = XMaxRequestSize (xdisplay);
size = MIN (262144, size - 100);
return size;
}
/**
* gdk_x11_display_get_screen:
* @display: a #GdkX11Display
*
* Retrieves the #GdkX11Screen of the @display.
*
* Returns: (transfer none): the #GdkX11Screen
*/
GdkX11Screen *
gdk_x11_display_get_screen (GdkDisplay *display)
{
return GDK_X11_DISPLAY (display)->screen;
}
static GdkKeymap *
gdk_x11_display_get_keymap (GdkDisplay *display)
{
GdkX11Display *display_x11;
g_return_val_if_fail (GDK_IS_DISPLAY (display), NULL);
display_x11 = GDK_X11_DISPLAY (display);
if (!display_x11->keymap)
{
display_x11->keymap = g_object_new (GDK_TYPE_X11_KEYMAP, NULL);
display_x11->keymap->display = display; /* beware of ref cycle */
}
return display_x11->keymap;
}
static GdkSeat *
gdk_x11_display_get_default_seat (GdkDisplay *display)
{
GList *seats, *l;
int device_id;
gboolean result = FALSE;
seats = gdk_display_list_seats (display);
gdk_x11_display_error_trap_push (display);
result = XIGetClientPointer (GDK_DISPLAY_XDISPLAY (display),
None, &device_id);
gdk_x11_display_error_trap_pop_ignored (display);
for (l = seats; l; l = l->next)
{
GdkDevice *pointer;
pointer = gdk_seat_get_pointer (l->data);
if (gdk_x11_device_get_id (pointer) == device_id || !result)
{
GdkSeat *seat = l->data;
g_list_free (seats);
return seat;
}
}
g_list_free (seats);
return NULL;
}
static int
gdk_x11_display_get_n_monitors (GdkDisplay *display)
{
GdkX11Display *x11_display = GDK_X11_DISPLAY (display);
return x11_display->monitors->len;
}
static GdkMonitor *
gdk_x11_display_get_monitor (GdkDisplay *display,
int monitor_num)
{
GdkX11Display *x11_display = GDK_X11_DISPLAY (display);
if (0 <= monitor_num || monitor_num < x11_display->monitors->len)
return (GdkMonitor *)x11_display->monitors->pdata[monitor_num];
return NULL;
}
static GdkMonitor *
gdk_x11_display_get_primary_monitor (GdkDisplay *display)
{
GdkX11Display *x11_display = GDK_X11_DISPLAY (display);
if (0 <= x11_display->primary_monitor && x11_display->primary_monitor < x11_display->monitors->len)
return x11_display->monitors->pdata[x11_display->primary_monitor];
return NULL;
}
int
gdk_x11_display_get_window_depth (GdkX11Display *display)
{
return display->window_depth;
}
Visual *
gdk_x11_display_get_window_visual (GdkX11Display *display)
{
return display->window_visual;
}
Colormap
gdk_x11_display_get_window_colormap (GdkX11Display *display)
{
return display->window_colormap;
}
static gboolean
gdk_x11_display_get_setting (GdkDisplay *display,
const gchar *name,
GValue *value)
{
return gdk_x11_screen_get_setting (GDK_X11_DISPLAY (display)->screen, name, value);
}
GList *
gdk_x11_display_get_toplevel_windows (GdkDisplay *display)
{
return GDK_X11_DISPLAY (display)->toplevels;
}
static guint32
gdk_x11_display_get_last_seen_time (GdkDisplay *display)
{
return gdk_x11_get_server_time (GDK_X11_DISPLAY (display)->leader_gdk_window);
}
static gboolean
gdk_boolean_handled_accumulator (GSignalInvocationHint *ihint,
GValue *return_accu,
const GValue *handler_return,
gpointer dummy)
{
gboolean continue_emission;
gboolean signal_handled;
signal_handled = g_value_get_boolean (handler_return);
g_value_set_boolean (return_accu, signal_handled);
continue_emission = !signal_handled;
return continue_emission;
}
static void
gdk_x11_display_class_init (GdkX11DisplayClass * class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GdkDisplayClass *display_class = GDK_DISPLAY_CLASS (class);
object_class->dispose = gdk_x11_display_dispose;
object_class->finalize = gdk_x11_display_finalize;
display_class->window_type = GDK_TYPE_X11_WINDOW;
#ifdef GDK_RENDERING_VULKAN
display_class->vk_context_type = GDK_TYPE_X11_VULKAN_CONTEXT;
display_class->vk_extension_name = VK_KHR_XLIB_SURFACE_EXTENSION_NAME;
#endif
display_class->get_name = gdk_x11_display_get_name;
display_class->beep = gdk_x11_display_beep;
display_class->sync = gdk_x11_display_sync;
display_class->flush = gdk_x11_display_flush;
display_class->make_default = gdk_x11_display_make_default;
display_class->has_pending = gdk_x11_display_has_pending;
display_class->queue_events = _gdk_x11_display_queue_events;
display_class->get_default_group = gdk_x11_display_get_default_group;
display_class->supports_shapes = gdk_x11_display_supports_shapes;
display_class->supports_input_shapes = gdk_x11_display_supports_input_shapes;
display_class->get_app_launch_context = _gdk_x11_display_get_app_launch_context;
display_class->get_next_serial = gdk_x11_display_get_next_serial;
display_class->notify_startup_complete = gdk_x11_display_notify_startup_complete;
display_class->create_window_impl = _gdk_x11_display_create_window_impl;
display_class->get_keymap = gdk_x11_display_get_keymap;
display_class->text_property_to_utf8_list = _gdk_x11_display_text_property_to_utf8_list;
display_class->utf8_to_string_target = _gdk_x11_display_utf8_to_string_target;
display_class->make_gl_context_current = gdk_x11_display_make_gl_context_current;
display_class->get_default_seat = gdk_x11_display_get_default_seat;
display_class->get_n_monitors = gdk_x11_display_get_n_monitors;
display_class->get_monitor = gdk_x11_display_get_monitor;
display_class->get_primary_monitor = gdk_x11_display_get_primary_monitor;
display_class->get_setting = gdk_x11_display_get_setting;
display_class->get_last_seen_time = gdk_x11_display_get_last_seen_time;
display_class->set_cursor_theme = gdk_x11_display_set_cursor_theme;
class->xevent = gdk_event_source_xevent;
/**
* GdkX11Display::xevent:
* @display: the object on which the signal is emitted
* @xevent: a pointer to the XEvent to process
*
* The ::xevent signal is a low level signal that is emitted
* whenever an XEvent has been received.
*
* When handlers to this signal return %TRUE, no other handlers will be
* invoked. In particular, the default handler for this function is
* GDK's own event handling mechanism, so by returning %TRUE for an event
* that GDK expects to translate, you may break GDK and/or GTK+ in
* interesting ways. You have been warned.
*
* If you want this signal handler to queue a #GdkEvent, you can use
* gdk_display_put_event().
*
* If you are interested in X GenericEvents, bear in mind that
* XGetEventData() has been already called on the event, and
* XFreeEventData() will be called afterwards.
*
* Returns: %TRUE to stop other handlers from being invoked for the event.
* %FALSE to propagate the event further.
*/
signals[XEVENT] =
g_signal_new (g_intern_static_string ("xevent"),
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GdkX11DisplayClass, xevent),
gdk_boolean_handled_accumulator, NULL,
_gdk_marshal_BOOLEAN__POINTER,
G_TYPE_BOOLEAN, 1, G_TYPE_POINTER);
_gdk_x11_windowing_init ();
}
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